SDL: Make it clear that the string comparison isn't a boolean check

From 0b71898cb17696240e67e505aadd176a1959b11c Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 11 Oct 2023 10:18:12 -0700
Subject: [PATCH] Make it clear that the string comparison isn't a boolean
 check

---
 src/video/wayland/SDL_waylandvideo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/wayland/SDL_waylandvideo.c b/src/video/wayland/SDL_waylandvideo.c
index d6c0d0e37bb4..09b836808111 100644
--- a/src/video/wayland/SDL_waylandvideo.c
+++ b/src/video/wayland/SDL_waylandvideo.c
@@ -131,7 +131,7 @@ static SDL_VideoDevice *Wayland_CreateDevice(void)
     /* Are we trying to connect to or are currently in a Wayland session? */
     if (!SDL_getenv("WAYLAND_DISPLAY")) {
         const char *session = SDL_getenv("XDG_SESSION_TYPE");
-        if (session && SDL_strcasecmp(session, "wayland")) {
+        if (session && SDL_strcasecmp(session, "wayland") != 0) {
             return NULL;
         }
     }